<template>
    <div>
      <!-- 面包屑导航区 -->
      <el-breadcrumb separator-class="el-icon-arrow-right">
        <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
        <el-breadcrumb-item>商品管理</el-breadcrumb-item>
        <el-breadcrumb-item>商品列表</el-breadcrumb-item>
      </el-breadcrumb>
      <!-- 卡片视图区 -->
      <el-card>
        <!-- 搜索与添加区域 -->
        <el-row :gutter="20">
            <el-col :span="7">
                <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getGoodsList">
                  <el-button slot="append"  icon="el-icon-search" @click="getGoodsList"></el-button>
               </el-input>
            </el-col>
            <el-col :span="4">
                <el-button type="primary" @click="goAddPage">添加商品</el-button>
            </el-col>
        </el-row>
        <!-- 商品列表区域 -->
        <el-table :data="GoodsList" stripe border>
            <el-table-column  label="#" type="index"></el-table-column>
            <el-table-column  label="商品名称" prop="goods_name"></el-table-column>
            <el-table-column label="商品价格" width="90px" prop="goods_price"></el-table-column>
            <el-table-column label="商品重量" width="90px" prop="goods_weight"></el-table-column>
            <el-table-column label="创建时间" width="200px" prop="add_time">
              <template slot-scope="scope">
                  {{scope.row.add_time | dateFormat}}
              </template>
            </el-table-column>
            <el-table-column label="操作" width="220px" >
                <template slot-scope="scope">
                    <el-button type="primary" icon="el-icon-edit" @click="editGoods"></el-button>
                    <el-button type="danger" icon="el-icon-delete" @click="deleteGoods(scope.row.goods_id)"></el-button>
                </template>
            </el-table-column>
        </el-table>
        <!-- 分页区域 -->
        <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="queryInfo.pagenum"
        :page-sizes="[1, 2, 5, 10]"
        :page-size="queryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total">
        </el-pagination>
      </el-card>
    </div>
</template>

<script>
export default {
  data () {
    return {
      // 获取用户例表的参数对象
      queryInfo: {
        query: '',
        pagenum: 1,
        pagesize: 10
      },
      // 商品列表
      GoodsList: [],
      // 总条数
      total: 0
    }
  },
  created () {
    this.getGoodsList()
  },
  methods: {
    // 获取商品列表
    async getGoodsList () {
      const res = await this.$http.get('goods', {
        params: this.queryInfo
      })
      if (res.data.meta.status !== 200) {
        this.$message.error('获取商品列表失败')
      } else {
        this.GoodsList = res.data.data.goods
        this.total = res.data.data.total
      }
    },
    // 每页显示条数变化
    handleSizeChange (newSize) {
      this.queryInfo.pagesize = newSize
      this.getGoodsList()
    },
    // 当前页码变化
    handleCurrentChange (newPage) {
      this.queryInfo.pagenum = newPage
      this.getGoodsList()
    },
    // 根据id删除商品
    deleteGoods (id) {
      this.$confirm('此操作将永久删除该商品, 是否继续?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).then(async () => {
        const res = await this.$http.delete('goods/' + id)
        if (res.data.meta.status !== 200) {
          this.$message.error('删除商品失败')
        } else {
          this.$message.success('商品已删除')
          this.getGoodsList()
        }
      }).catch(() => {
        this.$message({
          type: 'info',
          message: '已取消删除'
        })
      })
    },
    // 跳转到添加商品页面
    goAddPage () {
      this.$router.push('/goods/add')
    },
    editGoods () {
      this.$message.warning('编辑功能还未开放，敬请期待...')
    }
  }
}
</script>

<style lang="less" scoped>
</style>
